The high efficiency of the energy storage in the photosynthetic reaction center (RC) is determined by a successful competition of electron transfer from bacteriopheophytin to quinone, as compared to backward recombination of the primary charge-separated state. This relationship is caused by a fine matching of the reorganization energy and the free energy gap making the forward processes activationless, and hence very fast, and mismatching of these two quantities for the backreaction, therefore retarding it strongly. In this study, we show that this matching is due to a low dielectric constant of the RC's protein core because a low dielectric affects strongly electrostatic polarization components of both the reorganization energy and the equilibrium free energy of reaction. If the protein and membrane were replaced by a homogeneous medium with a high dielectric constant, the effective energy storage would be impractical.